Chain-attaching bracket for elevator-shaft doors.



PATENTED JUNE 18, 1907.

J. RASHKIN. CHAIN ATTAGHING BRACKET FOR ELEVATOR SHAFT DOORS.

APPLICATION FILED JUNB14,1905.

awuwvfoz Bash/213w .fose ah Gum/14 QLAA JOSEPH KASHKIN, OF NEW YORK, N.Y.

CHAlN-ATTACHING BRACKET FOR ELEVATOR-SHAFT DOORS.

Specification of Letters Patent.

Patented June 18, I907.

Application filed June 14,1905. Serial No. 265,146.

To all whom it may concern.-

Be it known that I, Josnrn RASIIKIN, a subject of the Czar of Russia,and a resident of the city of New York, in the county of New York andState of New York, have invented certain new and useful Improvements inChain-Attaching Brackets for Elovator-Shaft Doors, of which thefollowing is a specification.

This invention relates to chain-attaching brackets, and has for itsobject to provide an improved bracket of such type having means wherebya chain may be readily and conveniently secured in removable connectiontherewith, and also having further means whereby the chain, when placedor secured in such removable connection with the bracket, will bepositively retained against accidental renn-rval or disconnectiontherefrom.

To this end the invention consists in providing a bracket having twoflanges arranged substantially in line with each other and with a spacebetween their adjacent ends, into which space the link of a chain isadapted to be inserted. in a position transversely of the flanges and beengaged at its opposite sides by the adjacent ends of said flanges toeffect detachable connection of the chain with the bracket. After thelink of a chain has been so inserted between the adjacent ends of thebracket flanges it will be held against accidental withdrawal therefromby a suitable retainer.

A bracket embodying my invention may be secured to any desired object towhich it may be necessary or desirable to detachably or otherwise attacha chain, but in the pres ent case I have illustrated the same inconnection with a pair of doors for elevator shafts, such for example asdisclosed in my prior patent No. 756,524, dated April 5, 1904, whereintwo doors are operative] y connected by a suitable cable which operatesover a stationary pulley. .ln doors of this class it is desirable thatthe connecting cable should be capable of being rearlilytattachedto ordetached from one of the doors for convenience in setting up andadjusting the same and also for the purpose of permitting of their readyremoval at any time.

Referring now to the accompanying drawings forming part of thisspecification, Figure 1 is a cross-section through a portion of anelevator door and an adjacent track-rail,

, f l l l l f taken on line ll of Fig. 2, showing in top plan a bracketembodying my invention attached to said door and having a chain connected therewith. Fig. 2 is a front elevation of a portionof a pair ofcable-connecterl doors and the adjacent track-rail, one of said doorshaving my improved bracket attached thereto with which is detachablyconnected the chain forming part of the (loor-connccting cable. Fig. 3is a detail perspective view of the bracket detached from the door. Fig.4 is an enlarged view of a modified form of bracket with a chainconnected therewith.

Similar reference characters designate like parts in the several figuresof the drawings.

To explain in detail, a and 1) indicate portions of a pair of elevatordoors having grooved guide-plates (2. attached to their edges forengaging with a track-rail d carried by an angle-plate c which isadapted to be secured to the wall of an elevator shaft or other support.The said doors (I and 1) are connected by a suitable cable f operatingover a pulley g and are adapted to move vertically in a direction towardand from each other when being operated to open and close, insubstantially the same manner as in my said prior patent, the same beingcounterbalanced so as to insure their easy operation.

The door connecting cable f, in the pres ent case, includes a chainf,which is detachably connected with the upper door (L through I themedium of one of my improved brackets,

indicated generally by /t, which is attached to the door. This bracket71. is formed with a shank portion 2 adapted to be secured to the doorby suitable fastening means, such as the screws 3, and having an angularextension a carrying two laterally projecting flanges 5, 5, disposed ina plane off-set from the part :2 which are arranged substantially inline with each other and with a space (5 between their adjacent endsinto which one of the links f of the chainf is adapted to be inserted ina position transywrscly of the flanges, as shown. \Vhen the link of achain is thus inserted into the chain or link receiving space 6 of thebracket, its opposite sides will be engagcd by the adjacent ends of thetwo flanges and a positive and secure connection be thereby effectedbetween the chain and bracket. This construction of bracket permits ofthe ready connection therewith and disconnection therefrom of the chain,and.

also permits of ready adjustment of the length of cable between the twodoors by the connection with the bracket of a link located a greater orless distance from the end of the chain.

Upon the insertion of the link of a chain into the link-receiving space6 between the adjacent ends of the bracket flanges, a positiveconnection between the chain and bracket is effected as before stated.After such connection has been effected, however, there is a possibillity of the inserted chain link becoming accidentally withdrawnfrom its position be tween the flanges 5, 5, and so permitting adisconnection between the chain and the bracket. To guard againstpossibility oi such accidental withdrawal of the chain-link from itssaid position between the flanges 5, 5, I have provided a so-callecchain-retainer.. This chain-retainer, as shown in Figs. 1, 2 and 3, isin the form of an extension 7 of the lower flange 5 which projectslaterally from said flange in a position adj acent to its outer end andto the open end of the chain-receiving space 6 so as to receivetherebehind one end of the chain adjacent to the inserted linef, asshown in. Figs. 1 and 2, and operate to prevent the accidental outwardwithdrawal of said link from its position between the flanges. In lieuof the said retainer 7, however, I sometimes employ a retainer in theform of a piece of wire or other suitable material, such as indicated at7 in Fig. 4, which is secured in operative retaining position in frontof the inserted link f by having its ends passed through openings 5, 5,in the flanges 5, 5, and bent inwardly against the flanges in holdingposition, as at 8, 8.

What I claim is: 1. A chainattachmg bracket comprislng anattaching-plate, a part projecting outwardly from and disposed at anangle to' said attaching-plate, said outwardly projecting part beingprovided with laterally projecting flanges substantially in line witheach other and formed with a laterally opening chain-receiving spacebetween their adjacent ends, one of said flanges being pro vided with achain retaining means formed integral therewith.

2. A chain-attaching bracket comprising an attaching plate, rigidmembers off-set from and disposed in a plane substantially parallel tosaid plate, and formed with a laterally opening chain-receiving spacebetween them, one of said elements having a chainretainer formedintegral therewith and located wholly to one side of said laterallyopening space.

3. A chain-attaching bracket, comprising an attaching-plate, a partoff-standing from said plate and disposed at an angle thereto, laterallyprojecting flanges formed on said off-standing part and disposed inaplane substantially parallel to the attaching-plate, said flangeshaving a chain-receiving space formed there between and means to preventaccidental displacement of a chain from said space, said meansconsisting of a projection carried by one of said flanges and located ina plane substantially parallel with the oilstanding p art.

JOSEPH RASHKIN.

Witnesses:

CHAs. F. DANE, E. M. FAITH.

